The PowerPact™ H-frame circuit breakers are designed to protect electrical systems from damage caused by overloads and short circuits. H-frame circuit breakers are available with either thermal-magnetic or Micrologic™ electronic trip units. The amperage ratings of the thermal trip elements are calibrated at 104°F (40°C) free air ambient temperature. Per the National Electric Code® (NEC®) and the Canadian Electrical Code, standard circuit breakers may only be applied continuously at up to 80% of their rating. This PowerPact H-, J-Frame Circuit Breaker Fixed Handle Padlock Device has a toggle keylock destination. This padlock attachment allows This padlock will lock the breaker in the off position only. This accessory comes with an 18 months warranty. This product complies to UL & CSA certifications.